CN109491051A - Camera optical camera lens - Google Patents

Camera optical camera lens Download PDF

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Publication number
CN109491051A
CN109491051A CN201811626417.3A CN201811626417A CN109491051A CN 109491051 A CN109491051 A CN 109491051A CN 201811626417 A CN201811626417 A CN 201811626417A CN 109491051 A CN109491051 A CN 109491051A
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CN
China
Prior art keywords
lens
camera
refracting power
camera optical
optical camera
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Granted
Application number
CN201811626417.3A
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Chinese (zh)
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CN109491051B (en
Inventor
卞旭琪
孙雯
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Ruisheng Communication Technology Changzhou Co Ltd
Original Assignee
AAC Acoustic Technologies Shenzhen Co Ltd
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Priority to CN201811626417.3A priority Critical patent/CN109491051B/en
Publication of CN109491051A publication Critical patent/CN109491051A/en
Priority to PCT/CN2019/111164 priority patent/WO2020134373A1/en
Priority to JP2019200470A priority patent/JP6786693B2/en
Priority to US16/706,729 priority patent/US11340426B2/en
Application granted granted Critical
Publication of CN109491051B publication Critical patent/CN109491051B/en
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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B9/00—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or -
    • G02B9/64—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having more than six components
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
    • G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
    • G02B13/002—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
    • G02B13/0045—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface having five or more lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/0012—Optical design, e.g. procedures, algorithms, optimisation routines

Abstract

The present invention relates to field of optical lens, disclose a kind of camera optical camera lens, it sequentially include: an aperture by object side to image side, one the first lens with positive refracting power, second lens with negative refracting power, the third lens with positive refracting power, one the 4th lens with negative refracting power, one the 5th lens with positive refracting power, the 6th lens and the 7th lens with negative refracting power with negative refracting power；The focal length of second lens is f2, and the focal length of the third lens is f3, and the focal length of the 4th lens is f4, and the focal length of the 5th lens is f5, meets following relationship: 5.00≤f4/f2≤10.00,7.50≤f3/f5≤50.00.The camera optical camera lens provided by the invention meets the design requirement of large aperture and ultrathin while with favorable optical performance.

Description

Camera optical camera lens
Technical field
The present invention relates to field of optical lens, in particular to a kind of to be suitable for the hand-held terminals such as smart phone, digital camera The camera optical camera lens of the photographic devices such as equipment and monitor, PC camera lens.
Background technique
In recent years, with the rise of smart phone, the demand for minimizing phtographic lens is increasingly improved, and general phtographic lens Sensor devices nothing more than being that photosensitive coupled apparatus (Charge Coupled Device, CCD) or Complimentary Metal-Oxide are partly led Two kinds of body device (Complementary Metal-OxideSemicondctor Sensor, CMOS Sensor), and due to half Conductor manufacturing process technology progresses greatly, so that the Pixel Dimensions of sensor devices reduce, along with electronic product is good with function now And light and short external form is development trend, therefore, the miniaturization pick-up lens for having good image quality becomes at present Mainstream in the market.
To obtain preferable image quality, the camera lens that tradition is equipped on mobile phone camera mostly uses three-chip type, four-piece type even It is five chips, six chip lens arrangements.However, with the development of technology and users on diversity increases, in photoreceptor In the case that the elemental area of part constantly reduces, and requirement of the system to image quality is continuously improved, seven chip lens arrangements by Gradually appear in lens design, although seven common chip lens have had preferable optical property, its focal power, Lens spacing and lens shape setting still have certain irrationality, cause lens arrangement with favorable optical performance Meanwhile being unable to satisfy the design requirement of large aperture and ultrathin.
Summary of the invention
In view of the above-mentioned problems, the purpose of the present invention is to provide a kind of camera optical camera lens, it can be with good optical While performance, meet the design requirement of large aperture and ultrathin.
In order to solve the above technical problems, the present invention provides a kind of camera optical camera lens, the camera optical camera lens, by object Side to image side sequentially includes: an aperture, first lens with positive refracting power, second lens with negative refracting power, and one The third lens with positive refracting power, the 4th lens with negative refracting power, the 5th lens with positive refracting power, a tool There are the 6th lens and the 7th lens with negative refracting power of negative refracting power；
The focal length of second lens is f2, and the focal length of the third lens is f3, and the focal length of the 4th lens is f4, The focal length of 5th lens is f5, meets following relationship:
5.00≤f4/f2≤10.00,
7.50≤f3/f5≤50.00。
The present invention is in terms of existing technologies, it is specified that the ratio of the 4th focal length of lens and second focal length of lens and the The ratio of three focal lengths of lens and the 5th focal length of lens makes camera optical camera lens with good by the configuration mode of said lens While good optical property, meet the design requirement of large aperture and ultrathin.
Preferably, the focal length of the whole camera optical camera lens is f, and the focal length f2 of second lens meets following pass It is formula: -5.00≤f2/f≤- 3.00.
Preferably, on the axis of second lens with a thickness of d3, with a thickness of d5, the camera shooting on the axis of the third lens The optics overall length of optical lens is TTL, meets following relationship: 0≤(d3+d5)/TTL≤0.10.
Preferably, the radius of curvature of the third lens object side is R5, the radius of curvature of the third lens image side surface For R6, meet following relationship: 4.00≤(R5+R6)/(R5-R6)≤11.00.
Preferably, the radius of curvature of the 4th lens object side is R7, the radius of curvature of the 4th lens image side surface For R8, meet following relationship: 5.00≤(R7+R8)/(R7-R8)≤20.00.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the first embodiment of camera optical camera lens of the invention；
Fig. 2 is the axial aberration schematic diagram of camera optical camera lens shown in Fig. 1；
Fig. 3 is the ratio chromatism, schematic diagram of camera optical camera lens shown in Fig. 1；
Fig. 4 is the astigmatism curvature of field and distortion schematic diagram of camera optical camera lens shown in Fig. 1；
Fig. 5 is the structural schematic diagram of the second embodiment of camera optical camera lens of the invention；
Fig. 6 is the axial aberration schematic diagram of camera optical camera lens shown in Fig. 5；
Fig. 7 is the ratio chromatism, schematic diagram of camera optical camera lens shown in Fig. 5；
Fig. 8 is the astigmatism curvature of field and distortion schematic diagram of camera optical camera lens shown in Fig. 5；
Fig. 9 is the structural schematic diagram of the third embodiment of camera optical camera lens of the invention；
Figure 10 is the axial aberration schematic diagram of camera optical camera lens shown in Fig. 9；
Figure 11 is the ratio chromatism, schematic diagram of camera optical camera lens shown in Fig. 9；
Figure 12 is the astigmatism curvature of field and distortion schematic diagram of camera optical camera lens shown in Fig. 9.
Figure 13 is the structural schematic diagram of the 4th embodiment of camera optical camera lens of the invention；
Figure 14 is the axial aberration schematic diagram of camera optical camera lens shown in Figure 13；
Figure 15 is the ratio chromatism, schematic diagram of camera optical camera lens shown in Figure 13；
Figure 16 is the astigmatism curvature of field and distortion schematic diagram of camera optical camera lens shown in Figure 13.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to each reality of the invention The mode of applying is explained in detail.However, it will be understood by those skilled in the art that in each embodiment of the present invention, Many technical details are proposed in order to make reader more fully understand the present invention.But even if without these technical details and base In the various changes and modifications of following embodiment, claimed technical solution of the invention also may be implemented.
(first embodiment)
With reference to attached drawing, the present invention provides a kind of camera optical camera lenses 10.Fig. 1 show first embodiment of the invention Camera optical camera lens 10, the camera optical camera lens 10 include seven lens.Specifically, the camera optical camera lens 10, by object side Sequentially include: to image side aperture S1, the first lens L1, the second lens L2, the third lens L3, the 4th lens L4, the 5th lens L5, 6th lens L6 and the 7th lens L7.In present embodiment, it is preferred that be provided with glass between the 7th lens L7 and image planes Si The optical elements such as glass plate GF, wherein glass plate GF can be glass cover-plate, be also possible to optical filtering piece (filter), when So in other embodiments, other positions can also be arranged in glass plate GF.
In present embodiment, the first lens L1 has positive refracting power, and object side outwardly protrudes as convex surface, and image side surface is Concave surface；Second lens L2 has negative refracting power, and object side is convex surface, and image side surface is concave surface；The third lens L3, which has, just to bend Power is rolled over, object side is concave surface, and image side surface is convex surface；4th lens L4 has negative refracting power, and object side is convex surface, picture Side is concave surface；5th lens L5 has positive refracting power, and object side is concave surface, and image side surface is convex surface；6th lens L6 and With negative refracting power, object side is concave surface, and image side surface is concave surface；7th lens L7 has negative refracting power, and object side is Concave surface, image side surface are concave surface.
In present embodiment, the focal length of second lens is f2, and the focal length of the third lens is f3, and the described 4th thoroughly The focal length of mirror is f4, and the focal length of the 5th lens is f5, meets following relationship:
5.00≤f4/f2≤10.00 (1)
7.50≤f3/f5≤50.00 (2)
Wherein, conditional (1) defines the focal length of the 4th lens L4 and the ratio of the second lens L2 focal length.So set, Focal power can be more reasonably distributed, is conducive to camera optical camera lens and develops to large aperture, ultrathin, while being conducive to system and obtaining Obtain preferable image quality and lower sensibility.
Conditional (2) defines the focal length of the third lens L3 and the ratio of the 5th lens L5 focal length.So set, can be effective So that the light angle of pick-up lens is flattened slow, reduce tolerance sensitivities.
In present embodiment, by the configuration mode of said lens, make camera optical camera lens with favorable optical performance While, meet the design requirement of large aperture and ultrathin.
Preferably, in embodiment of the present invention, the focal length of the entirety camera optical camera lens is f, second lens Focal length f2, meets following relationship:
-5.00≤f2/f≤-3.00 (3)
Conditional (3) defines the focal length of the second lens L2 and the ratio of whole 10 focal length of camera optical camera lens, at this When within the scope of part, the spherical aberration of the first lens generation and the curvature of field amount of system can be effectively balanced.
Preferably, in present embodiment, with a thickness of d3 on the axis of second lens, thickness on the axis of the third lens Optics overall length for d5, the camera optical camera lens is TTL, meets following relationship:
0≤(d3+d5)/TTL≤0.10 (4)
Conditional (4) defines on the axis of the second lens L2, the third lens L3 the sum of thickness with lens optical overall length TTL's Ratio when in this condition and range, is conducive to improve system image quality in the case where ultrathin.
Preferably, in present embodiment, the radius of curvature of the third lens object side is R5, the third lens image side The radius of curvature in face is R6, meets following relationship:
4.00≤(R5+R6)/(R5-R6)≤11.00 (5)
Conditional (5) defines the shape of the third lens L3, when in this condition and range, is conducive to the third lens molding, And it avoids causing to form the generation of bad and stress because the surface curvature of the third lens is excessive.
Preferably, in present embodiment, the radius of curvature of the 4th lens object side is R7, the 4th lens image side The radius of curvature in face is R8, meets following relationship:
5.00≤(R7+R8)/(R7-R8)≤20.00 (6)
Conditional (6) defines the shape of the 4th lens L4, when in this condition and range, is conducive to draw angle outside correction axis Aberration.
In present embodiment, the first lens L1 is glass material, therefore the reliability of temperature and humidity has preferable performance, And first lens L1 Abbe number it is larger, therefore, can effectively correct color difference, promote the optical property of pick-up lens.This embodiment party In formula, the material of the second lens L2, the third lens L3, the 4th lens L4, the 5th lens L5, the 6th lens L6 and the 7th lens L7 For plastics, production cost can be effectively reduced.
In addition, the surface of lens can be set to it is aspherical, it is aspherical to be easy to be fabricated to the shape other than spherical surface, obtain More controlled variable is obtained, to cut down aberration, and then reduces the number that lens use, therefore the present invention can be effectively reduced and take the photograph As the total length of optical lens.In the embodiment of the present invention, the object side of each lens and image side surface are aspherical.
It is noted that due to the first lens L1, the second lens of the camera optical lens 10 for constituting present embodiment L2, the third lens L3, the 4th lens L4, the 5th lens L5, the 6th lens L6 and the 7th lens L7 have foregoing knot Structure and parameters relationship, therefore, camera optical camera lens 10 being capable of each power of lens of reasonable distribution, face type, materials and each Thickness etc. on the axis of mirror, and all kinds of aberrations are therefore corrected, the optical imaging system Fno of the camera optical camera lens 10 in the present invention ≤1.45；The optics overall length TTL of camera optical camera lens 10, the image height IH of camera optical camera lens 10 meet following relationship: TTL/ IH≤1.48；The field angle FOV of camera optical camera lens 10, meets following relationship: FOV >=76 degree.Realizing has well While optical imagery performance, meet the design requirement of large aperture and ultrathin.
Preferably, it is also provided with the point of inflexion and/or stationary point on the object side of the lens and/or image side surface, with full The imaging demand of sufficient high-quality, specific implementable solution are joined lower described.
It shown below the design data of camera optical camera lens 10 in first embodiment of the invention.It should be noted that In present embodiment, the unit of distance, radius and thickness is millimeter (mm).
Table 1, table 2 show the design data of the camera optical camera lens 10 of first embodiment of the invention.
[table 1]
Wherein, the meaning of each symbol is as follows.
S1: aperture；
R: being center radius of curvature when the radius of curvature of optical surface, lens；
The radius of curvature of the object side of R1: the first lens L1；
The radius of curvature of the image side surface of R2: the first lens L1；
The radius of curvature of the object side of R3: the second lens L2；
The radius of curvature of the image side surface of R4: the second lens L2；
The radius of curvature of R5: the third lens L3 object side；
R6: the radius of curvature of the image side surface of the third lens L3；
The radius of curvature of the object side of R7: the four lens L4；
The radius of curvature of the image side surface of R8: the four lens L4；
The radius of curvature of the object side of R9: the five lens L5；
The radius of curvature of the image side surface of R10: the five lens L5；
The radius of curvature of the object side of R11: the six lens L6；
The radius of curvature of the image side surface of R12: the six lens L6；
The radius of curvature of the object side of R13: the seven lens L7；
The radius of curvature of the image side surface of R14: the seven lens L7；
R15: the radius of curvature of the object side of optical filtering piece GF；
R16: the radius of curvature of the image side surface of optical filtering piece GF；
D: distance on the axis on the axis of lens between thickness and lens；
Distance on the axis of the object side of d0: aperture S1 to first lens L1；
Thickness on the axis of d1: the first lens L1；
Distance on the image side surface of d2: the first lens L1 to the axis of the object side of the second lens L2；
Thickness on the axis of d3: the second lens L2；
Distance on the image side surface of d4: the second lens L2 to the axis of the object side of the third lens L3；
D5: thickness on the axis of the third lens L3；
D6: distance on the axis of the image side surface of the third lens L3 to the object side of the 4th lens L4；
Thickness on the axis of d7: the four lens L4；
Distance on the image side surface of d8: the four lens L4 to the axis of the object side of the 5th lens L5；
Thickness on the axis of d9: the five lens L5；
Distance on the image side surface of d10: the five lens L5 to the axis of the object side of the 6th lens L6；
Thickness on the axis of d11: the six lens L6；
Distance on the image side surface of d12: the six lens L6 to the axis of the object side of the 7th lens L7；
Thickness on the axis of d13: the seven lens L7；
Distance on the image side surface of d14: the seven lens L7 to the axis of the object side of optical filtering piece GF；
D15: thickness on the axis of optical filtering piece GF；
D16: distance on the image side surface to the axis of image planes of optical filtering piece GF；
The refractive index of nd:d line；
The refractive index of the d line of nd1: the first lens L1；
The refractive index of the d line of nd2: the second lens L2；
The refractive index of nd3: the third lens L3 d line；
The refractive index of the d line of nd4: the four lens L4；
The refractive index of the d line of nd5: the five lens L5；
The refractive index of the d line of nd6: the six lens L6；
The refractive index of the d line of nd7: the seven lens L7；
Ndg: the refractive index of the d line of optical filtering piece GF；
Vd: Abbe number；
The Abbe number of v1: the first lens L1；
The Abbe number of v2: the second lens L2；
V3: the Abbe number of the third lens L3；
The Abbe number of v4: the four lens L4；
The Abbe number of v5: the five lens L5；
The Abbe number of v6: the six lens L6；
The Abbe number of v7: the seven lens L7；
Vg: the Abbe number of optical filtering piece GF.
Table 2 shows the aspherical surface data of each lens in the camera optical camera lens 10 of first embodiment of the invention.
[table 2]
Wherein, k is circular cone coefficient, and A4, A6, A8, A10, A12, A14, A16, A18, A20 are asphericity coefficients.
IH: image height
Y=(x2/R)/[1+{1-(k+1)(x2/R2)}1/2]+A4x4+A6x6+A8x8+A10x10+A12x12+A14x14+ A16x16+A18x18+A20x20 (7)
For convenience, each lens face is aspherical using aspherical shown in above-mentioned formula (7).But this hair The bright aspherical polynomial form for being not limited to the formula (7) expression.
Table 3, table 4 show the point of inflexion of each lens and stationary point in the camera optical camera lens 10 of first embodiment of the invention Design data.Wherein, P1R1, P1R2 respectively represent object side and the image side surface of the first lens L1, and P2R1, P2R2 respectively represent The object side of two lens L2 and image side surface, P3R1, P3R2 respectively represent object side and the image side surface of the third lens L3, P4R1, P4R2 respectively represents object side and the image side surface of the 4th lens L4, P5R1, P5R2 respectively represent the 5th lens L5 object side and Image side surface, P6R1, P6R2 respectively represent object side and the image side surface of the 6th lens L6, and P7R1, P7R2 respectively represent the 7th lens The object side of L7 and image side surface." point of inflexion position " field corresponding data is the point of inflexion set by each lens surface to shooting light Learn the vertical range of 10 optical axis of camera lens." stationary point position " field corresponding data is stationary point set by each lens surface to shooting light Learn the vertical range of 10 optical axis of camera lens.
[table 3]
[table 4]
Stationary point number Stationary point position 1 Stationary point position 2
P1R1
P1R2 1 1.065
P2R1
P2R2
P3R1
P3R2 2 0.385 0.525
P4R1 1 0.875
P4R2 1 0.875
P5R1
P5R2
P6R1 2 0.215 0.975
P6R2 1 1.055
P7R1 1 2.765
P7R2 1 0.855
Fig. 2, Fig. 3 respectively illustrate the light that wavelength is 470nm, 510nm, 555nm, 610nm and 650nm to be implemented by first Axial aberration and ratio chromatism, schematic diagram after the camera optical camera lens 10 of mode.Fig. 4 is then shown, and wavelength is 555nm's The curvature of field and distortion schematic diagram after camera optical camera lens 10 of the light by first embodiment, the curvature of field S of Fig. 4 is sagitta of arc direction The curvature of field, T are the curvature of field of meridian direction.
The table 17 occurred afterwards show in each example 1,2,3,4 in various numerical value and conditional as defined in corresponding to parameter Value.
As shown in table 17, first embodiment meets each conditional.
In the present embodiment, the Entry pupil diameters of the camera optical camera lens are 3.299mm, and full filed image height is 3.852mm, the field angle of diagonal are 76.98 °, while having favorable optical performance, meet large aperture and ultrathin Design requirement.
(second embodiment)
Second embodiment is essentially identical with first embodiment, and symbol meaning is identical with first embodiment, below only List difference.
Table 5, table 6 show the design data of the camera optical camera lens 20 of second embodiment of the invention.
[table 5]
Table 6 shows the aspherical surface data of each lens in the camera optical camera lens 20 of second embodiment of the invention.
[table 6]
Table 7, table 8 show the point of inflexion of each lens and stationary point in the camera optical camera lens 20 of second embodiment of the invention Design data.
[table 7]
Point of inflexion number Point of inflexion position 1 Point of inflexion position 2 Point of inflexion position 3
P1R1 1 1.395
P1R2 1 0.585
P2R1
P2R2
P3R1 3 0.295 0.345 1.185
P3R2 3 0.175 0.435 1.185
P4R1 3 0.485 1.185 1.345
P4R2 3 0.545 1.385 1.505
P5R1 2 0.385 1.065
P5R2 3 0.655 1.135 1.875
P6R1 3 0.255 0.745 1.725
P6R2 3 0.665 2.015 2.355
P7R1 2 1.465 2.655
P7R2 3 0.485 2.595 3.015
[table 8]
Fig. 6, Fig. 7 respectively illustrate the light that wavelength is 470nm, 510nm, 555nm, 610nm and 650nm to be implemented by second Axial aberration and ratio chromatism, schematic diagram after the camera optical camera lens 20 of mode.Fig. 8 is then shown, and wavelength is 555nm's The curvature of field and distortion schematic diagram after camera optical camera lens 20 of the light by second embodiment.
As shown in table 17, second embodiment meets each conditional.
In the present embodiment, the Entry pupil diameters of the camera optical camera lens are 3.057mm, and full filed image height is 3.852mm, the field angle of diagonal are 81.61 °, while having favorable optical performance, meet large aperture and ultrathin Design requirement.
(third embodiment)
Third embodiment and first embodiment are essentially identical, and symbol meaning is identical with first embodiment, below only List difference.
Table 9, table 10 show the design data of the camera optical camera lens 30 of third embodiment of the invention.
[table 9]
Table 10 shows the aspherical surface data of each lens in the camera optical camera lens 30 of third embodiment of the invention.
[table 10]
Table 11, table 12 show the point of inflexion of each lens in the camera optical camera lens 30 of third embodiment of the invention and stay Point design data.
[table 11]
[table 12]
Stationary point number Stationary point position 1 Stationary point position 2 Stationary point position 3
P1R1
P1R2 1 0.895
P2R1
P2R2
P3R1 2 0.415 0.665
P3R2 3 0.435 0.545 1.295
P4R1 1 0.895
P4R2 1 0.895
P5R1 2 0.705 1.195
P5R2
P6R1 1 0.955
P6R2 1 1.125
P7R1
P7R2 1 0.845
It is real by third that Figure 10, Figure 11 respectively illustrate the light that wavelength is 470nm, 510nm, 555nm, 610nm and 650nm Axial aberration and ratio chromatism, schematic diagram after applying the camera optical camera lens 30 of mode.Figure 12 is then shown, wavelength 555nm Camera optical camera lens 30 of the light by third embodiment after the curvature of field and distortion schematic diagram.
As shown in table 17, third embodiment meets each conditional.
In the present embodiment, the Entry pupil diameters of the camera optical camera lens are 3.117mm, and full filed image height is 3.852mm, the field angle of diagonal are 80.50 °, while having favorable optical performance, meet large aperture and ultrathin Design requirement.
(the 4th embodiment)
4th embodiment and first embodiment are essentially identical, and symbol meaning is identical with first embodiment, below only List difference.
Table 13, table 14 show the design data of the camera optical camera lens 40 of four embodiment of the invention.
[table 13]
Table 14 shows the aspherical surface data of each lens in the camera optical camera lens 40 of four embodiment of the invention.
[table 14]
Table 15, table 16 show the point of inflexion of each lens in the camera optical camera lens 40 of four embodiment of the invention and stay Point design data.
[table 15]
Point of inflexion number Point of inflexion position 1 Point of inflexion position 2 Point of inflexion position 3
P1R1 1 1.385
P1R2 1 0.575
P2R1
P2R2
P3R1 3 0.175 0.515 1.235
P3R2 3 0.165 0.485 1.175
P4R1 2 0.395 1.235
P4R2 2 0.355 1.415
P5R1 2 0.495 0.845
P5R2 1 1.925
P6R1 3 0.065 0.715 1.765
P6R2 2 0.745 2.005
P7R1 1 1.485
P7R2 2 0.485 2.795
[table 16]
Stationary point number Stationary point position 1 Stationary point position 2
P1R1
P1R2 1 1.005
P2R1
P2R2
P3R1 2 0.335 0.645
P3R2 2 0.325 0.625
P4R1 1 0.585
P4R2 1 0.575
P5R1
P5R2
P6R1 2 0.105 0.985
P6R2 1 1.065
P7R1 1 2.695
P7R2 1 0.885
It is real by the 4th that Figure 14, Figure 15 respectively illustrate the light that wavelength is 470nm, 510nm, 555nm, 610nm and 650nm Axial aberration and ratio chromatism, schematic diagram after applying the camera optical camera lens 40 of mode.Figure 16 is then shown, wavelength 555nm The curvature of field of the light after the camera optical camera lens 40 of the 4th embodiment and distortion schematic diagram.
As shown in table 17, the 4th embodiment meets each conditional.
In the present embodiment, the Entry pupil diameters of the camera optical camera lens are 3.171mm, and full filed image height is 3.852mm, the field angle of diagonal are 79.47 °, while having favorable optical performance, meet large aperture and ultrathin Design requirement.
[table 17]
Conditional Embodiment 1 Embodiment 2 Embodiment 3 Embodiment 4 Remarks
f4/f2 6.10 9.93 5.09 5.10 Conditional (1)
f3/f5 33.87 49.96 7.53 16.60 Conditional (2)
f2/f -3.29 -3.02 -4.99 -3.57 Conditional (3)
(d3+d5)/TTL 0.08 0.09 0.08 0.07 Conditional (4)
(R5+R6)/(R5-R6) 10.10 10.87 4.00 4.21 Conditional (5)
(R7+R8)/(R7-R8) 15.28 19.94 18.36 5.02 Conditional (6)
f 4.750 4.402 4.488 4.567
f1 4.351 4.328 4.776 4.366
f2 -15.637 -13.291 -22.377 -16.286
f3 124.354 130.199 40.436 67.595
f4 -95.387 -131.975 -113.889 -83.048
f5 3.671 2.606 5.372 4.073
f6 -12.352 -6.976 -88.444 -31.392
f7 -3.621 -3.357 -3.440 -3.341
f12 5.442 5.746 5.613 5.442
TTL 5.589 5.570 5.549 5.517
It will be understood by those skilled in the art that the respective embodiments described above are to realize specific embodiment party of the invention Formula, and in practical applications, can to it, various changes can be made in the form and details, without departing from spirit and model of the invention It encloses.

Claims (5)

1. a kind of camera optical camera lens, which is characterized in that the camera optical camera lens sequentially includes: a light by object side to image side Circle, first lens with positive refracting power, second lens with negative refracting power, a third with positive refracting power are saturating Mirror, the 4th lens with negative refracting power, the 5th lens with positive refracting power, one the with negative refracting power the 6th is saturating Mirror and the 7th lens with negative refracting power；
The focal length of second lens is f2, and the focal length of the third lens is f3, and the focal length of the 4th lens is f4, described The focal length of 5th lens is f5, meets following relationship:
5.00≤f4/f2≤10.00,
7.50≤f3/f5≤50.00。
2. camera optical camera lens according to claim 1, which is characterized in that the focal length of the entirety camera optical camera lens is F, the focal length f2 of second lens, meets following relationship:
-5.00≤f2/f≤-3.00。
3. camera optical camera lens according to claim 1, which is characterized in that with a thickness of d3 on the axis of second lens, With a thickness of d5 on the axis of the third lens, the optics overall length of the camera optical camera lens is TTL, meets following relationship:
0≤(d3+d5)/TTL≤0.10。
4. camera optical camera lens according to claim 1, which is characterized in that the radius of curvature of the third lens object side Radius of curvature for R5, the third lens image side surface is R6, meets following relationship:
4.00≤(R5+R6)/(R5-R6)≤11.00。
5. camera optical camera lens according to claim 1, which is characterized in that the radius of curvature of the 4th lens object side Radius of curvature for R7, the 4th lens image side surface is R8, meets following relationship:
5.00≤(R7+R8)/(R7-R8)≤20.00。
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